Results 121 to 130 of about 276,793 (392)

Development of Photo‐Biocatalytic Redox System for Asymmetric Synthesis of Optically Active Amines Using Blue Light and Transaminases. A Case Study Toward Mavacamten

Advanced Synthesis &Catalysis, EarlyView.
Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos, Aleksandra Rudzka, Anna Hoser, Tamara Reiter, Wolfgang Kroutil, Paweł Borowiecki   +5 more
wiley   +1 more source

Optimal conditions for efficient ion acceleration and neutron production in deuterium gas-puff z-pinches

Nuclear Fusion
Deuterium gas-puff z-pinches are researched primarily as efficient sources of DD fusion neutrons. The first experiment with a deuterium gas jet was carried out in 1978 (Shiloh et al 1978 Phys. Rev. Lett. 40 515518).
D. Klir, S.L. Jackson, J. Cikhardt, B. Cikhardtova, P. Kubes, J. Malir, V. Munzar, J. Novotny, K. Rezac   +8 more
doaj   +1 more source

Ignition of a deuterium micro-detonation with a gigavolt super marx generator [PDF]

arXiv, 2008
The Centurion-Halite experiment demonstrated the feasibility of igniting a deuterium-tritium micro-explosion with an energy of not more than a few megajoule, and the Mike test, the feasibility of a pure deuterium explosion with an energy of more than 10^6 megajoule. In both cases the ignition energy was supplied by a fission bomb explosive.
arxiv  

Ultradense Deuterium

Journal of Fusion Energy, 2010
An attempt is made to explain the recently reported occurrence of ultradense deuterium as an isothermal transition of Rydberg matter into a high density phase by quantum mechanical exchange forces. It is conjectured that the transition is made possible by the formation of vortices in a Cooper pair electron fluid, separating the electrons from the ...
openaire   +2 more sources

Selective Co‐Assembly of Water‐Soluble Conjugated Polyelectrolyte with Discernable Fluorescence Modulation for Antibiotic Detection

Advanced Sensor Research, EarlyView.
PQx‐Ph, a water‐soluble conjugated polyelectrolyte, enables rapid and selective fluorescence‐based detection of structurally distinct antibiotics via supramolecular assembly modulation. It achieves nanomolar sensitivity under mild conditions and preserves reliable sensing performance across NOM‐rich and biologically relevant water matrices, supporting ...
Hyena Ji, Yesica Fernanda Florez‐Villabona, Youngsun Kim, Yerim Kim, Yongju Kim, Seungyun Baik, Young Hun Seo, Sehoon Kim   +7 more
wiley   +1 more source

Catalyst‐Free Direct Hydrocarbonation of Terminal Alkynes Toward E‐Alkene Substituted Stabilized Sulfoxonium Ylides

Advanced Science, EarlyView.
The authors introduce a high‐throughput synthesis using amide‐sulfoxonium ylides as new nucleophilic reagents, enabling a catalyst‐ and base‐free hydrocarbonation of terminal alkynes under mild conditions, resulting in various E‐alkene substituted (hetero)amide‐sulfoxonium ylides with excellent regio‐ and stereoselectivity. The late‐stage modifications
Haiting Wu, Yougen Xu, An Lin, Jingyuan Liu, Huanjun Chen, Shimin Xie, Lebin Su   +6 more
wiley   +1 more source

First results of laser-induced desorption - quadrupole mass spectrometry (LID-QMS) at JET

Nuclear Fusion
The paper reports the first demonstration of in situ laser-induced desorption — quadrupole mass spectrometry (LID-QMS) application on a large scale fusion device performed in summer 2023. LID-QMS allows direct measurements of the fuel inventory of plasma
M. Zlobinski, G. Sergienko, I. Jepu, C. Rowley, A. Widdowson, R. Ellis, D. Kos, I. Coffey, M. Fortune, D. Kinna, M. Beldishevski, A. Krimmer, H.T. Lambertz, A. Terra, A. Huber, S. Brezinsek, T. Dittmar, M. Flebbe, R. Yi, R. Rayaprolu, J. Figueiredo, P. Blatchford, S. Silburn, E. Tsitrone, E. Joffrin, K. Krieger, Y. Corre, A. Hakola, J. Likonen, the Eurofusion Tokamak Exploitation Team, JET Contributors   +30 more
doaj   +1 more source

Thermal up-scattering of very cold and ultra-cold neutrons in solid deuterium [PDF]

arXiv, 2004
The work presented in this thesis forms part of a program at the Paul Scherrer Institute (PSI) to construct a high intensity superthermal ultra-cold neutron (UCN) source based on solid deuterium as UCN production medium. We carried out a set of experiments to gain a better understanding of the properties and the behaviour of solid deuterium as a cold ...
arxiv  

Influence of Below-Cloud Evaporation on Deuterium Excess in Precipitation of Arid Central Asia and Its Meteorological Controls

, 2016
The deuterium excess is a second-order parameter linking water-stable oxygen and hydrogen isotopes and has been widely used in hydrological studies.
Sheng-jie Wang, Mingjun Zhang, Y. Che, Xiaofan Zhu, Xuemei Liu   +4 more
semanticscholar   +1 more source

An Intelligent and Conductive Hydrogel with Multiresponsive and ROS Scavenging Properties for Infection Prevention and Anti‐Inflammatory Treatment Assisted by Electrical Stimulation for Diabetic Wound

Advanced Science, EarlyView.
This study introduces a novel therapeutic approach that employs a conductive hydrogel (HEPP) responsive to near‐infrared light, pH levels, and reactive oxygen species. Its goal is to enhance the healing environment affected by elevated glucose levels, insufficient oxygen, and bacterial infections in diabetes‐related wounds.
Tao Zhang, Zongwu Meng, Haoyu Yu, Ping Ding, Tianhan Kai   +4 more
wiley   +1 more source